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Spring Essentials – Solid Height Calculation and ‘max’ Solid Height

by | Jul 1, 2006 | Articles, Springs Magazine

When a spring is compressed to a point where it can no longer move, it has reached what is called “solid height” – it can move no farther. This height is very easy to calculate. However, there are usually two conditions to take into consideration: Are the spring ends ground or unground?

Figure 1

Figure 1: One full coil = two wire sizes for unground. Therefore, always one more coil. Total coils = d × (Nt + 1).

Figure 2

Figure 2: Half wire size removed on each side by grinding = 1 full wire size removed. Total coils = d × Nt.

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